From: Eric Wong <e@80x24.org>
Date: Tue, 4 Jun 2019 02:04:22 +0000 (+0000)
Subject: feed: only accept ASCII digits for ref~$N
X-Git-Tag: v1.2.0~196^2~19
X-Git-Url: http://www.git.stargrave.org/?a=commitdiff_plain;h=010fbd95d3916e20960d0aacea7dfc53502ff5ed;p=public-inbox.git

feed: only accept ASCII digits for ref~$N

We don't want to waste cycles passing non-ASCII characters
to git.
---

diff --git a/lib/PublicInbox/Feed.pm b/lib/PublicInbox/Feed.pm
index a04838a1..ae071895 100644
--- a/lib/PublicInbox/Feed.pm
+++ b/lib/PublicInbox/Feed.pm
@@ -102,7 +102,7 @@ sub recent_msgs {
 	my $hex = '[a-f0-9]';
 	my $addmsg = qr!^:000000 100644 \S+ (\S+) A\t${hex}{2}/${hex}{38}$!;
 	my $delmsg = qr!^:100644 000000 (\S+) \S+ D\t(${hex}{2}/${hex}{38})$!;
-	my $refhex = qr/(?:HEAD|${hex}{4,40})(?:~\d+)?/;
+	my $refhex = qr/(?:HEAD|${hex}{4,40})(?:~[0-9]+)?/;
 
 	# revision ranges may be specified
 	my $range = 'HEAD';